We must not forget that the Mac is built as an inshore, Category “C” boat – suitable for waves up to 2 meters and force 6 winds on the Beaufort scale. That basically says it all.
However, as some have already pointed out and as many of us know and have experienced, the Mac has proven to be dependable in conditions in excess of the limits for which it is rated. This doesn’t mean it will ever become an offshore boat nor will it ever compare to one. But you can count on the Mac if you get caught out in unfavorable conditions, combined with your level of seamanship, to overcome the obstacles and make it home safely.
The distance from shore that makes it safe (on any boat) will vary as the prevailing parameters change and, once again, boils down to good judgment and sound seamanship.
Another angle to the statement/argument that PhilM puts forward could be that in extreme weather conditions that last for several days on end you are better off being in the middle of the ocean way out at sea rather than anywhere close to a shore so that you have enough space around you to allow for drift, errors in navigation, inability to steer a straight course, leeway, possible lack of maneuverability due to damage to your boat, etc. etc.
I think in a Mac you will have headed back home well before those conditions expanded.
Happy Power Sailing
Octaman
